1. Material Composition & Inherent Toughness
- HDPE or fiberglass – offer superior flexibility and ductility over rigid metals.
- Absorbs sudden kinetic energy from bumps or falling debris without fracturing.
- Highly resilient in demanding industrial environments.
2. Structural Geometry & Stress Distribution
- Smooth, cylindrical design – distributes applied stress evenly across surface.
- Prevents localized stress concentrations and structural breaches.
- Ensures impact energy is safely dissipated.
3. Vulnerability Without Secondary Protection
- No sacrificial outer shell – impact absorbed directly by primary vessel.
- Secondary protection absent to deflect or cushion blows.
- Requires strict traffic control and physical bollards.
4. Temperature Effects & Long‑Term Durability
- Extreme cold – can cause material brittleness and reduce shock absorption.
- Select materials engineered for flexibility across wide temperature range.
- Ensures long‑term safety and prevents accidental leaks.